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Pag. 38

SIRIO 2000T

SIRIO 2000T

SIRIO 2000T

SIRIO 2000T

SIRIO 2000T

Electronic Broadcast Equipment

Menu #23: Password Confirmation

This field is displayed when password code or mode is changed on menu #13. It requires to input the

same password as in the current level which has to be changed. Failure to do it will produce the following
message:

This display stops input mode for 5 second and then permits to exit (and possibly to try again) with the

escape key.

Menu #25: Auxiliary channel Input Level Set

This field in command mode, with the 2nd level password authorisation, allows to set the auxiliary

channels input sensitivity. Allowed range is -12 ÷ +4 dBm to produce 10% modulation, i.e. 7.5kHz deviation
or 0dB in the upper line of the display.

Menu #27: Mode, Preemphasis and Frequency Set

In this field it is possible to set the transmission "modes" (MONO R, STEREO, MONO L+R, EXT

MPX), the preemphasis time-constant (0, 25, 50 & 75 

µ

s) and the frequency in step of 10 or 100kHz as

pre-set on   menu #37. The access to this last menu is performed directly from the main frequency menu #07,
pressing the "right" key.

Left and right keys change the input fields while the up and down keys, after having selected with "enter"

change the various options or increase/decrease the frequency. To confirm the displayed value, another
press of "enter" key is required

  CONFIRM PASSWORD
        ....

 INVALID PASSWORD!
        ....

AUX  2.0kHz  -11.2dB
Nom.input = + 0.0dBm

 STEREO      PR=50us
   FM  102.43 MHz

Summary of Contents for SIRIO 2000T

Page 1: ... 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T 2000 2000 2000 2000 2000 W FM PO W FM PO W FM PO W FM PO W FM POWER WER WER WER WER TRANSMITTER TRANSMITTER TRANSMITTER TRANSMITTER TRANSMITTER USER USER USER USER USER AND MAINTENANCE MANU AND MAINTENANCE MANU AND MAINTENANCE MANU AND MAINTENANCE MANU AND MAINTENANCE MANUAL AL AL AL AL ...

Page 2: ... parola FRAGILE Ricordate che il numero RMA deve essere visibile anche sul pacco in caso contrario non verrà accettato Copyright AEV S p A 96 03 Tutti i diritti riservati Nessuna parte di questa pubblicazione puó essere riprodotta trasmessa archiviata in un sistema di riferimento o tradotta in altre lingue in qualsiasi forma con qualsiasi mezzo senza il consenso scritto di AEV S p A Registrazione ...

Page 3: ...nternodell apparato Nonpermetterechel apparatosiausatodabambinie odapersonaleimpreparato Primadieffettuarequalsiasioperazionedipuliziae omanutenzioneesterna disinserite l apparatodallaretedialimentazioneelettricaedattenderealmeno2secondicome prescrittodallenormativecheregolamentanolasicurezza SAFETYPRECAUTIONS IMPORTANT Carefullyreadthisparagraphasitcontainsimportantinstructions concerningoperator...

Page 4: ...Infasediinstallazioneètassativoprevedereunospazioliberointornoall apparecchio dialmeno1cmpergarantireunadeguataareazione N B L apparatoècostruitoaregolad arte L affidabilitàelettricaemeccanica saràmantenutaefficienteseverràfattounusocorrettodell apparatoerispettate leprescrizionidimanutenzioneovepreviste Donotattempttomakerepairsand oradjustmentswhencovers guardsorcircuitboards aretoberemoved Blow...

Page 5: ...nvorgeschrieben FallseineStörungodereineFehlfunktiondesGerätesvorhandensind sollendasGerät unddasVersorgungskabelvomNetzausgeshaltetundkeinenEingriffandasGerät durchgeführtwerden PRECAUTIONS ATTENTION liretouteslesinstructionsdonnèesdansceparagraphecarelles concernentlasecuritè l installation l emploietl entretien Nepasaccomplirlesréglesetlesprècautionsspécifiquesdonnéesdanscemanuelest uneviolatio...

Page 6: ...sGerätordnungsgemässbenutztwirdund wenndieWartungsvorschriften fallsvorgesehen beobachtetwerden Sionaunepanneet ouunmauvaisfonctionnementdel appareil ilfautl éteindre deconnecterl alimentation nepasl endommagerets adresseraudétaillant Nepaschercheràfaireuneréparationet ouunemiseàpointquirendnécessairele déplacementdescouverclesoul extractiondesfiches Larupturedufusibledansl alimentationsignifiequ ...

Page 7: ...nelandequipment andmust beperformedonlybyqualifiedpersonnelexercisingduecare AEVS pA shallnotberesponsibleforinjuryordamageresultingfromimproperproceduresorfromtheuseofimproperlytrained orinexperiencedpersonnelperformingsuchtasks Duringinstallationandoperationofthisequipment localbuildingcodesandfireprotectionstandardsmustbeobserved WARNING Alwaysdisconnectpowerbeforeopeningcovers doors enclosures...

Page 8: ...AL CLEAR OUT MOUTH IF NECESSARY 4 QUICK FULL BREATHS OBSERVE FOR BREATHING REMEMBER MOUTH TO MOUTH RESUSCITATION MUST BE COMMENCED AS SOON AS POSSIBLE CCIRCULATION CHECK CAROTID PULSE DEPRESS STERNUM 1 1 2 to 2 IF PULSE ABSENT APPROX 80 SEC ONE RESCUE 15 COMPRESSION BEGIN ARTIFICIAL 2 QUICK BREATHS CIRCULATION APPROX 60 SEC TWO RESCUERSO 5 COMPRESSIONS I BREATH NOTE DONOTINTERRUPTRHYTHMOFCOMPRESSI...

Page 9: ...heredparticlesofclothing orapplyanysalve o r ointment c Treatvictimforshockasrequired d Arrange transportation to a hospital as quickly as possible e Ifarmsorlegsareaffectedkeepthemelevated NOTE Ifmedicalhelpwillnotbeavailablewithinanhourandthevictimisconsciousandnotvomiting givehimaweaksolutionofsalt andsoda 1levelteaspoonfulofsaltand1 2levelteaspoonfulofbakingsodatoeachquartofwater neitherhotorc...

Page 10: ...Pag 10 SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T Electronic Broadcast Equipment ...

Page 11: ...er the link with the studio the power amplifier the antennas the cables and the connectors Only following this kind of procedure will insure the best performances likewise reliability and stability Transmitter must not be tampered with by unskilled personnel and our after sale service is always availabletocustomersforanytechnicalproblem Beforeproceedingtoinstallation pleasemakesureto carefullyhave...

Page 12: ...shold low frequencyinputsarefittedwithbalancedinputcircuitry Theinputlevel ispreciselyadjustableoverawiderangebymeansofa0 5dBstepvariableattenuator Thetransmitterhas anauxiliaryinput specificallydesignedforRDSandSCAencoders Amodulationoutputallowstocontrol othertransmitters orSTLs withthesameinternallyprocessedhigh qualitympxsignal The alphanumeric display and the keyboard allow an easy and accura...

Page 13: ...eanaturalapproachtothevariouscontrolsand toallowoperationandprogrammingineveryrespectofthetransmitter Thepasswordmanagement whenused hidessomefunctionsandpreventsvoluntaryorinvoluntary tamperingwiththemostcriticaloptionsanddatabyunauthorisedpeople TheON stand bykeydoes notpoweroffthetransmitter whichisstilllockedonfrequencyandready totransmitassoonasthekeyispushedoraremotecommandissent Notethata m...

Page 14: ...CIRCUITS AT THE REAROF THIS PANEL ARE CONNECTEDTOMAINS VOLTAGE TOPREVENT CAUTION POWER ON I PANNELLI DI CHIUSURA SUPERIORE EDINFERIORE PRIMA DI CAMBIARE I FUSIBILIINTERNI DISCONNETTERE SONO RICHIESTI PERLA CONFORMITA AGLI STANDARD DI SICUREZZA E DI EMISSIONE ELETTROMAGNETICA ASSOLUTAMENTE IL COLLEGAMENTO ALLA RETE NONRIMUOVERE LE COPERTURE INOLTRE ENTRAMBI RETE PEREVITARE RISCHI DA SCOSSA ELETTRIC...

Page 15: ... to the input signal pin 3 on the mono right channel XLR socket For this reason it s not possible to use both inputs at the same time On the left side of the panel are located the mains power switch the power cord and an earth screw for a separated earthing system as well as the ground conductor on the cord Should an over current condition take place the power switch would trip and stop the device...

Page 16: ...onnectors BNC Mpx output level 0 10 dBm 75kHz dev Preenphasis time costant 0 50 75 µs 2 S N ratio mono 70 dB 73 tip 30 20000Hz S N ratio stereo 66 dB 68 tip 30 20000Hz Modulation distortion 0 05 0 02 tip 75kHz dev 0 2 0 05 tip 150kHz dev limiter threshold 150 kHz Stereo crosstalk 50 dB with ext encoder 60 dB 100 5000 Hz 50 dB 30 15000 Hz with int encoder Audio channels frequency response 30 Hz 15 ...

Page 17: ...itter performssuperbly Asarule theusershouldnothaveaccesstotheinsideofthetransmitterfornormalinstallationanduse Tampering with the factory settings not only voids the guarantee but also might affect transmitter performancesand orcausecostlydamages Beforeproceeding makesurethatmainsvoltagecorrespondstothefactory presetvalue usually220 240Vac Incaseitdiffers jumpersmustbeinternallysetonthemainssuppl...

Page 18: ...thusrequiredintheroom Airexchangeintheroomshallhaveaminimumflow rate of 500 metres cubed per hour or more Ifthetransmitterisfittedinaracksystem thebackdooroftherackcannotusuallybefixedinplace Whenacompletelyclosedassemblyisneeded asuitableventilationextractionunitmustbeused Toaid airductinginsuchcases anoptionalflangemayberetrofittedontheventilationoutlettowhichaductcan beattachedtoconveyhotairout...

Page 19: ...tomonitoritsfunctionsthroughthekeyboardandthefrontpaneldisplay The first request at the turn on will be entering the password for the required level of authorisation security Thetransmitterisfactorypre setwiththefirst2levelsdisabled thiswill permittotosetmostoftheoperatingparameters includingpower frequency inputlevels clock anddate Somemorecriticalparameterswillrequiretheupper3rdlevel besuretokno...

Page 20: ...sesanexternallinestabiliserisinevitablyrequired Toallownominal115Vmainsoperation 100 130Vac somejumpersmust beproperly setintheinput transformerterminalboard inside thetransmitter Todothat thepowercordmustbedisconnectedfromthe mains thetopcovermustberemovedandthetransformervoltageterminalsmustbeaccessed 5 4 SYSTEM CONNECTION 1 Connectthe7 16 typeoutputconnector marked RFOUT totheantenna or toafoll...

Page 21: ...eantennaorthesystem arenotproperlyconnectedorfunctioning 8 Checkand orsetclockanddataandalltransmissionparametersasrequired i e channelsensitivityand deviation mono stereo preemphasisetc Refertotheappropriatesectionofthemanual 5 5 LF CONNECTION AND PRESETS LFwiringandimpedanceselection SIRIO2000Tsupportsbalancedorunbalancedaudiosignalsandallowsselectableinputimpedance Theinputsarebasicallybalanced...

Page 22: ...ector is also of the groundedBNCfemaletype Use50 ohm RG58 or 75 ohm RG59 cables for the connection to the driver The same applies to the monitor MODULATION output ifneeded Pre emphasissetting Low frequencymono andstereochannel signalshavetobeadequately pre emphasised Standard preemphasistimeconstantis50and75µs theformerbeingusuallyfactorypre set Checkwhetherthisis correctforyourcountry itisusually...

Page 23: ...Bmtoproduce10 modulation i e 7 5kHzdeviation ConsequentlytypicalinputlevelsforanSCA typesignal 10 max admissibledeviation are0 2 1 0Vrms 566 2830mVpp whentheinputissetbetween 11 5and 2 5dB Allthesame anRDS typesignal couldbeaccommodatedinthe0 052 0 33Vrms 150 930mVpp levelrange toproducethestandard peak deviation of 2 kHz as above In case a higher deviation is required for RDS some broadcast autho...

Page 24: ...sholdshouldneverbetoohigh Itishighly recommendedtouseanexternalmulti bandlimitertooptimisemodulation withhighertoleranceforany audio signalpeaks Suchdevicesmomentarilyreducetheamplifiercircuits gainifthethresholdisexceeded andpreventsevere significantdistortion Anyexternalcompressor limiteroraudiometermustbefrequency compensated with the same time constantofthepre emphasisto modulateormonitordevia...

Page 25: ...nector DB9type tobewiredtothetransmitterend Parallel REMOTEport Thisportaccommodatessomelinesforsimpledirectcontrol monitoronaDB9maleconnector They are Pin 1 5 8 Ground Pin2 OnTheAir a 12V 10kΩsignalsthatthetransmitterdelivers subtantialRFpower Pin3 Directpower asignalproportionaltodirectpowerispresent withapseudosquarelaw Range is 0 5Vdc 1kΩ impedance With SIRIO 2000T a 5V stands for 2000W Pin6 R...

Page 26: ...etransmitterisalready presetforstereooperationifneeded simply reversingtransmissionmodeto stereo inside theaforementioned 2 Selectthe MODE commandmenuandselect MONO L R operatingmode Confirmorchangealso 50or75µspreemphasisasrequired Notethatitispossible actingontheinternalstereo encoder toblendtheleftandrightchannelorselect onlyoneofthem withoutchangingthemodulationsensitivity Refertothestereo enc...

Page 27: ... ModulationAdjustmentwithbroadcastsignal Check theoverallmodulationlevelforadequacy asfollows 1 Selectthedisplaymenufield MPX thetotalmodulationwillbedisplayed bothindBandasdeviation inkHz Ananalogmovingbarandadigitalpeakreadingarecontemporaryshown 2 Sendapseudoconstantlevelmusical signal tothemodulatorinput checkthemeasurehoversinthe aroundof0dBm orthechosenvalue i e 6dB andmovesabithigherduring ...

Page 28: ...nna filtersenvironment If lowpowerleveltransmissionisimperative adjustitverycarefullyandalsopre set themaximum outputpowerwhichmaybeadjustedbymainregulation thesoftwarepermitstoadjustthemaxRFoutput level cfr relevantsectioninthemanual Carefullycheckwithaspectrumanalyserthatthetransmitteris worklyproperlyatandjustbelowtheoperatingpower The installationofthetransmitteristherebycompleted Manyothermon...

Page 29: ...sitmaybealwayschangedwiththehigherlevelauthorisation Hereisthepurposeofeachlevel Level1 Lowersecuritylevel Itisneededtoaccesstomostofthemonitoringandcontrolmenufields notpermittingtoalterorprogramminganyoperatingparameter Itisfactorypre set to off state bydefault enablingtheusernavigationthroughthetransmitter smonitoringmenuinformation AEVS P A suggestleavingitinitsstateifahighprivacylevelisnotnee...

Page 30: ...othetransmitterwillthenrequirefactoryreprogrammingorchangingofthe internalCPU For anyparametersthatmayrequiresomesettinginthefield the2ndlevelpasswordisenough andmaybeusedforanystandardservicerequirement Themainpurposeoftheexistenceofthe 3rdlevelisasecurityassurancefortheuserifhelosescontrolonthelowerlevelpassword Onlyveryfewcriticalparameters likelimiterpermissionorcontrolrequirethispassword asin...

Page 31: ...quiredonlybysomefunctionsinthislastcolumn 11 00 01 21 31 02 22 32 03 04 05 25 06 07 27 37 08 09 29 39 12 13 23 14 YES NO LEV 1 ELAPSED TIME EXEC SW RESET SET PASSWORD CONF PASSWORD T 25 C 01 JAN 01 17 22 SET DATA TIME AUTO POWER DOWN 23 00 06 00 P 50 FREQUENCY MODE VS2 Vs Vs 28V 12 5V 12 7V FM 100 0 MHz M MONO PR OFF 00 0 0 0 0 0 0 0 MPX LIMIT LEVEL AUTOCONTROL LEFT level 3 0dB 0 SET MPX GAIN MAX ...

Page 32: ...mpossibletodiscoverhiddenfunctionswithouttheproperpasswordpermission Startmenu The start menu field is the unnumbered one on the top of the menu tree It is shown only when the transmitteristurnedonfromthemainsorwhenaresetissentviasoftwareorhardware Thedisplay will showthesoftwareversionandtheinitializationstep whenalltheledsandthedisplaywillbeturnedonand offforashortwhile fortestingpurposes Anysub...

Page 33: ...flectedpoweractuallydelivered Going tothecommandmode withthe2ndlevelpasswordauthorisation willallowtosetanewdirect RFoutputpower Seemenu 21 Menu 02 MultiplexSignalLevel OutputModulation Thisfieldshowsthepresentpeak modulationindBreferredto75kHzandasdeviationinkHz Apseudo analogmovingbarwillcontemporarychangeaccordingto themodulation leavingapeakmarkatitsend for1or2seconds Averticalbar onthislinema...

Page 34: ...Right Signal Level as analog moving bar Thisfieldshowsthepresentleftandrightpeakmodulationastwomovingbars Averticallinemarks0dB positionandthesameconsiderationsasinthepreviousmenuarestillvalid Menu 05 Auxiliary Signal Level Modulation SCA or RDS This deviationfieldshowsthepresentmodulationduetoanauxiliarySCAorRDSsignalinkHz and apeaklevelexpressedin dBreferredto7 5kHz 10 ofmaxpeakmodulation Usuall...

Page 35: ...atureisreallythatoftheexhaustventilationairanditistakenjustbehindthefrontpanel Itisusually 2 3 Chigherthantheexternaltemperatureatfulloutputpower i e nearly 47 Cassuminganexternal temperatureof 45 C themaximumallowed Theheatsinktemperatureisusually10to13 Chigherthantheroomtemperature fullpower Beingthemaximumallowedtemperaturelimit 45 C thetransmitterprogressivelyreducesitsoutput powerwhentheambie...

Page 36: ...el passwordarecorrectlyentered Ifthepasswordorthestatusischanged itisalwaysrequiredtoconfirmthecorrectpasswordforthat level Incasealowerpasswordpermissionisactuallyenteredinregardtotheneededaction itispossible toinputthehigherlevelpasswordsorperformingasoftwarereset ifpermitted orturningoffandonthemains voltagethroughtherearmainsswitchoranexternalswitch The3rdlevelauthorisation whenset willstayval...

Page 37: ...numericvalue Theoutputpowerwillvaryinrealtime Confirmingthefinalvaluewithan enter willwritethenewsetting inthe memoryofthetransmitter Escapingwillinsteadabortthechange Alocaltime outwillautomatically delete theinputiftheinputitselfnotconfirmedin30sfromthelastchange Menu 22 Multiplex Left Right Input Level Set Thisfieldincommandmode withthe2ndlevelpasswordauthorisation servestosetLFinputchannels se...

Page 38: ...nnelsinputsensitivity Allowedrangeis 12 4dBmtoproduce10 modulation i e 7 5kHzdeviation or0dBintheupperlineofthedisplay Menu 27 Mode Preemphasis and Frequency Set Inthisfielditispossibletosetthetransmission modes MONOR STEREO MONOL R EXT MPX thepreemphasistime constant 0 25 50 75µs andthefrequencyinstepof10or100kHzas pre seton menu 37 Theaccesstothislastmenuisperformeddirectlyfromthemainfrequencyme...

Page 39: ...nycase thispowerishardwarelimitedto100 120Wforsecurityreason AutoControlonthelowerlineisnotyetoperativeandcouldbeabsentinsomesoftwarerelease Menu 32 Limiter Set Thisfield withthe2ndlevelauthorisation permitstosetthelimiteraction Theright leftkeystogglethe limiteronandoff Theup downkeysvarythethresholdlevel AutoControlonthelowerlineisnotoperativeinsomesoftwarerelease Whenitis itwilldynamically redu...

Page 40: ...variationbetween100and 10kHz Menu 39 Power downsetup Thisfield withthe2ndlevelauthorisation allowtopresetthe power down mode Ifthismodeison theoutputpowerwillbeautomaticallydecreasedtothepre setpercentageinthe timeperiodsetinthebottomline Thescaledpowerisapproximate andmustbetestedand oradjusted beforefinalsetup ifcritical FREQUENCY MODE 100kHz STEP AUTO POWER DOWN OFF 23 00 06 00 P 50 ...

Page 41: ...ntwithasoftbrushor compressedairatsomefixedtimeintervals i e between6and12months Becauseofthehigh qualitymaterialsusedintheirmanufacture outoftheabovecasesifSIRIO2000T isinstalledassetforthasper INSTALLATIONANDUSE itwillnotrequireanyspecialmaintenance forquitealongtime Afterafewyearsofcontinuousservice itisrecommendedthetransmitterissentbacktothefactoryor toaspecialisedlaboratory whereits characte...

Page 42: ...connections Thisguaranteeisnullandvoidsifthetransmitteristamperedwith oriffailureisduetoimproperuse wronginstallationorexternalcauses such asmainsovervoltage lightningorexcessivemoistureinthe environment This guarantee covers work done exclusively in our laboratories and in those of our agreed representatives The goods shall be delivered carriage prepaid to thelaboratoryandshallbereturnedfreightfo...

Page 43: ...ry regulated power supply For the detailed description of each module on the following pages always refer to the corresponding electrical diagram in a following section of this manual THIS SECTION IS ONLY AIMED TO GENERAL EXPLANATION REFERENCE AND SERVICE PURPOSE BY SKILLED PERSONNEL AS EXPLAINED IN THE PREVIOUS SECTIONS INTERNAL ADJUSTMENTS ARE NOT REQUIRED DURING NORMAL OPERATION TAMPERING WITH ...

Page 44: ...mperaturesensing ThesimplespecialisedIC6performsclockanddatefunctionsasastand aloneunit backed up bya batterywhichkeepscircuitactiveforalongtimewhenpowerisoff Thekeyboardswitcharrayissequentiallyscannedonehundredtimesinasecondtodetermineifakey waspushed IC5 aserialtoparallelconverter drivesthefront panelledsandthedisplaybacklightingwith TR2 Thealphanumericdisplayisaseparatemoduleconnectedtotheboar...

Page 45: ...l upmakesthelogiclevels 1V as 0 and 10 12V for 1 OnthelowerrightsectionofthediagramitislocatedtheRFpowercontroller TheRFdirectandreflectedpowersignalssamplescomingfromtheoutputdirectionalcouplerare amplifiedbyIC3intwosymmetricalcircuits Thedirect powercontrolcircuit builtaroundIC4a continuouslydrivestheRFoutputstagegain varying thesupplyvoltagetotheRFdrivertransistorandtheregulatedvoltageoftheoutp...

Page 46: ...Onthe air THE STEREO ENCODER MODULE Theencodingcircuitusesan8 stepswitchingtechnique whichensuresexcellentperformancewitha relativelysimplecircuit Withthistechniquethefirstharmonicsthatareassociatedwiththeresultingstereo multiplexsignalarethe7thand9th 266and342kHz thissimplifiesthedesignofthelow passfilteron thissignal Theaudiosignalisfilteredbeyond15kHzbythetwoprecisionactivelow passfiltersbuilta...

Page 47: ...T1 ThedigitalPLLcircuitisentirelycontainedinIC2 whosefrequencyreferenceisderivedfroman highly precisetemperaturecompensatedoscillator TCXO1 runningatafrequencyof12 8MHz Tocorrectlyoperateonthechosenfrequency IC2mustbeseriallyprogrammedwithcomplexdata This taskisperformedbythetransmitterCPUthrough3controllines IC1alsoservesasa loopfilteringfromIC2frequencycomparatoroutputtothevaractordiodesand lock...

Page 48: ...four500Wamplifiermodules coupledwithaninputsplitterandwithanoutput combiner Alow passinincorporatedinthelatter togheterwithadirectionalcoupler Thewholeassemblyiscontainedinafullyscreenedbox whichmaybeaccessedfromthebottomofthe transmitter onlyremovingthebottomcover Aquickdescriptionofeachstagefollows TheinputRFpowersplitter The purpose of this simple board is mainly to divide the input RF drive po...

Page 49: ...rately adjusted through R15 and R16 on each section Do not tamper the factory bias preset values The full power output of the 500 module actually exceeds 600W to provide some room for coupling losses on the combining stages of higher power amplifiers like it happens with SIRIO2000T TheoutputRFpowercombiner LPFandcoupler This module is symmetric to the input power splitter and is another printed Wi...

Page 50: ...by the ALC control with the output power to maintain high efficiency at reduced power levels proportionally decreasing the generated heat amount The voltage varies in the range of 30 to 48V the higher one being measurable only when the transmitter is set at the maximum output power A fast 80A semiconductor grade protection fuse is screwed on the board it may be fused by the crowbar protection in c...

Page 51: ...ut A30Vzenerdiode D8 isinparallelwiththemainregulatedoutputforsafetypurpose Shouldtheinternal switchtransistorfailshort D8wouldbreak downblowingtheseriesinputfuseontheboard avoidingmore costlyovervoltagedamagestotherestofthetransmitter Itisimperativenottoexceedthenominal 28 0V 0 1Vmax onthemainregulatedoutputtoavoidoverstressonthiscomponentandconsequentfailure Neverthlessinthistransmitterthemainre...

Page 52: ...Pag 52 SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T Electronic Broadcast Equipment SIRIO 2000T TRANSMITTER FRONT TOP ASSEMBLY VIEW ...

Page 53: ...Pag 53 SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T Electronic Broadcast Equipment SIRIO 2000T TRANSMITTER REAR INTERNAL VIEW ...

Page 54: ...Pag 54 SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T Electronic Broadcast Equipment SIRIO2000T TRANSMITTER GENERAL ELECTRICAL DIAGRAM ...

Page 55: ...Pag 55 SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T Electronic Broadcast Equipment SIRIO 2000T TRANSMITTER SIRIO ASSEMBLY ELECTRICAL DIAGRAM ...

Page 56: ...Pag 56 SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T Electronic Broadcast Equipment COMPONENT LAYOUT SIRIO 25AL5 AUXILIARY POWER REGULATOR BOARD ELECTRICAL DIAGRAM ...

Page 57: ...Pag 57 SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T Electronic Broadcast Equipment SIRIO 25CON CPU CONTROLLER DISPLAY BOARD ELECTRICAL DIAGRAM ...

Page 58: ...Pag 58 SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T Electronic Broadcast Equipment SOLDER SIDE COMPONENT SIDE SIRIO 25CON CPU CONTROLLER DISPLAY BOARD COMPONENTS LAYOUT ...

Page 59: ...Pag 59 SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T Electronic Broadcast Equipment COMPONENT LAYOUT SIRIO 1K05IN INPUT INTERFACE BOARD ELECTRICAL DIAGRAM ...

Page 60: ...IRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T Electronic Broadcast Equipment COMPONENTS MAY VARY DUE TO PRODUCTION ADJUSTMENTS SIRIO 25MB MAINBOARD I O RF CONTROL SECTION ELECTRICAL DIAGRAM 1 of 2 ...

Page 61: ...Pag 61 SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T Electronic Broadcast Equipment SIRIO 25MB MAINBOARD LF PROCESS SECTION ELECTRICAL DIAGRAM 2 of 2 ...

Page 62: ...Pag 62 SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T Electronic Broadcast Equipment SIRIO 25MB MAINBOARD COMPONENT LAYOUT ...

Page 63: ...Pag 63 SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T Electronic Broadcast Equipment SIRIO 25COD2 STEREO ENCODER BOARD ELECTRICAL DIAGRAM ...

Page 64: ...Pag 64 SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T Electronic Broadcast Equipment SIRIO 25COD2 STEREO ENCODER BOARD COMPONENT LAYOUT ...

Page 65: ...Pag 65 SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T Electronic Broadcast Equipment COMPONENTS MAY VARY DUE TO PRODUCTION ADJUSTMENTS SIRIO 25MOD FM SIRIOITER BOARD ELECTRICAL DIAGRAM ...

Page 66: ...Pag 66 SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T Electronic Broadcast Equipment SIRIO25MOD FM SIRIOITER BOARD COMPONENT LAYOUT ...

Page 67: ...Pag 67 SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T Electronic Broadcast Equipment SIRIO 25AM5 FM 25W POWER AMPLIFIER ELECTRICAL DIAGRAM ...

Page 68: ...Pag 68 SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T Electronic Broadcast Equipment ASSIRIO25AM5 FM 25W POWER AMPLIFIER COMPONENT LAYOUT ...

Page 69: ...Pag 69 SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T Electronic Broadcast Equipment ASRFB2K0RF 2KW AMPLIFIER ASSEMBLY ELECTRICAL DIAGRAM ...

Page 70: ...Pag 70 SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T Electronic Broadcast Equipment SRFB1K0LP 2 PORT RF OUTPUT COMBINER LPF ELECTRICAL DIAGRAM ...

Page 71: ...Pag 71 SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T Electronic Broadcast Equipment SRFB500W 500W AMPLIFIER MODULE ELECTRICAL DIAGRAM ...

Page 72: ...Pag 72 SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T Electronic Broadcast Equipment SRFB500W 500W AMPLIFIER MODULE COMPONENT LAYOUT ...

Page 73: ...Pag 73 SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T Electronic Broadcast Equipment SRFB1K5ALM 48V 70A SMPS REGULATOR ELECTRICAL DIAGRAM POWER SECTION ...

Page 74: ...Pag 74 SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T Electronic Broadcast Equipment SRFB1K5ALM 48V 70A SMPS REGULATOR ELECTRICAL DIAGRAM CONTROL SECTION ...

Page 75: ...Pag 75 SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T Electronic Broadcast Equipment SRFB1K5ALM 48V 70A SMPS REGULATOR COMPONENT LAYOUT POWER SECTION ...

Page 76: ...Pag 76 SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T Electronic Broadcast Equipment SRFB1K5ALM 48V 70A SMPS REGULATOR COMPONENT LAYOUT CONTROL SECTION ...

Page 77: ...Pag 77 SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T SIRIO 2000T Electronic Broadcast Equipment ...

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